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  <title>等待所有cURL批处理中的活动连接</title>
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  <div id="layout-content"><div id="function.curl-multi-select" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">curl_multi_select</h1>
  <p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">curl_multi_select</span> &mdash; <span class="dc-title">等待所有cURL批处理中的活动连接</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.curl-multi-select-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>curl_multi_select</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$mh</code></span>
   [, <span class="methodparam"><span class="type">float</span> <code class="parameter">$timeout</code><span class="initializer"> = 1.0</span></span>
  ] ) : <span class="type">int</span></div>

  <p class="para rdfs-comment">
    阻塞直到cURL批处理连接中有活动连接。
  </p>

 </div>


 <div class="refsect1 parameters" id="refsect1-function.curl-multi-select-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<code class="parameter">mh</code>
</dt>
<dd>
<p class="para">由 <span class="function"><a href="curl_multi_init.html" class="function">curl_multi_init()</a></span> 返回的 cURL 多个句柄。</p></dd>

    
     <dt>
<code class="parameter">timeout</code></dt>

     <dd>

      <p class="para">
       以秒为单位，等待响应的时间。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.curl-multi-select-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回描述符集合中描述符的数量。失败时，select失败时返回-1，否则返回超时(从底层的select系统调用).
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.curl-multi-select-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="curl_multi_init.html" class="function" rel="rdfs-seeAlso">curl_multi_init()</a> - 返回一个新cURL批处理句柄</span></li>
   </ul>
  </p>
 </div>


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